This is a powerful piece that calls out the ugly truth--there is definitely pervasive and blatant anti-Black racism in other communities of color. As you pointed out, white supremacy necessarily forces other non-Black communities to choose whether they want "White adjacent" status or to be considered Black. This is why I think immigrant communities unfamiliar with American history and the complex pressures of White supremacy in the US readily adopt anti-Black racism--they see it as a way to economic and social security.
But those of us who were born in the US and whose education has included challenging those anti-Black lessons, have absolutely embraced solidarity. We may be smaller in numbers and less visible, but we're here. I know current leaders are doing amazing work (including my old college friend, Alberto Retana, who is transforming lives in South LA as the leader of the Community Coalition). But it's not just in 2021. Look to the past: I'm especially proud to know that Asian American women like Yuri Kochiyama and Grace Lee Boggs, as well as other Asian American, Chicano and Filipino activists worked alongside Black leaders for social change. When we know, we do better.